Detailed Notes: Not Legal For Sale Or Use On Pollution Controlled Motor Vehicles~ Emission Code 3; For Use On Pro-Pollution Controlled Vehicles (PPCV)~ Legal For Use On Pre-Pollution Controlled Vehicles~ For Vehicles Manufactured Before Emission Control Regulations Were Imposed~ Vehicles Pre-Emmision Regulations Are Considered UnControlled Vehicles~ 1965 And Older U.S. Manufactured California Certified Vehicles~ 1967 And Older U.S. Manufactured Federally Certified Vehicles~ 1967 And Older Foreign Manufactured Vehicles